PhilCTTE
Senior mumbler
Thanks for the reply, its the inactive message that i get when switching on and as i say switch it off and back on cures it so maybe thats doing the same as unplugging and re-inserting the USB.
Next time it does it i will try unplugging the USB instead of powering off !
Mine happens after a good hour or so at least (when it occurs) not at switch on.
I may try a session without isolator . Maybe it has something to do with power from the USB getting disrupted by the Olimex . Although the MDAC does not require any power it uses it somehow as part of the signal ( a few posts back John detailed this.)
I'm not to bothered as I'm waiting for the development of the MTRNS with Isolated USB to optical 192khz conversion.